// -*- c++ -*-
/* $Id: context.ccg,v 1.3 2006/06/10 15:26:24 murrayc Exp $ */

/* 
 *
 * Copyright 1998-1999 The Gtk-- Development Team
 * Copyright 2001      Free Software Foundation
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <pango/pangocairo.h>
#include <pango/pango-types.h> //For PANGO_MATRIX_INIT

namespace Pango
{

Glib::ArrayHandle< Glib::RefPtr<FontFamily> > Context::list_families() const
{
  //Get array:
  PangoFontFamily** pFamilies = 0;
  int n_families = 0;
  pango_context_list_families(const_cast<PangoContext*>(gobj()), &pFamilies, &n_families);
  
  return Glib::ArrayHandle< Glib::RefPtr<FontFamily> >
      (pFamilies, n_families, Glib::OWNERSHIP_SHALLOW);
}

Pango::FontMetrics Context::get_metrics(const FontDescription& desc) const
{
  return FontMetrics(pango_context_get_metrics(const_cast<PangoContext*>(gobj()), desc.gobj(), 0));
}

ListHandle_Item Context::itemize(const Glib::ustring& text, const AttrList& attrs) const
{
  return ListHandle_Item(
      pango_itemize(const_cast<PangoContext*>(gobj()),
                    text.c_str(), 0, text.bytes(),
                    const_cast<PangoAttrList*>(attrs.gobj()), 0),
      Glib::OWNERSHIP_DEEP);
}

ListHandle_Item Context::itemize(const Glib::ustring& text, int start_index, int length,
                                 const AttrList& attrs, AttrIter& cached_iter) const
{
  return ListHandle_Item(
      pango_itemize(const_cast<PangoContext*>(gobj()),
                    text.c_str(), start_index, length,
                    const_cast<PangoAttrList*>(attrs.gobj()), cached_iter.gobj()),
      Glib::OWNERSHIP_DEEP);
}

void Context::update_from_cairo_context(const Cairo::RefPtr<Cairo::Context>& context)
{
  pango_cairo_update_context(context->cobj(), gobj());
}

Matrix Context::get_matrix() const
{
  const PangoMatrix* matrix = pango_context_get_matrix(const_cast<PangoContext*>(gobj()));
  if(matrix)
    return *matrix;
  else
  {
    PangoMatrix identity_transform = PANGO_MATRIX_INIT;
    return identity_transform;
  }
}

} /* namespace Pango */